Aside from the fact that the Nokia Lumia 900 is already on back-order with Amazon Wireless — the phone officially went on pre-order on March 30 with an in-store availability date announced for April 8 — it appears that it is doing quite well.

As you can see in the image above (and at the source link below), we not only have one, but two Nokia Lumia 900 phones on the top spots of Amazon’s best-selling AT&T devices. Both the black and cyan variants rule the list and this is just three days after the official pre-orders received the green light. Furthermore, Amazon’s list of best-selling cell phones with service plans features the two Lumia 900 phones at five and seven. This is great news for both Microsoft and Nokia fans in the U.S.